Grades 6–8. During this unit students answer the question, "How can we use chemical reactions to design a solution to a problem?" They first think about how to heat food without using typical methods, then undertake a design project to construct, test, revise, and retest a homemade flameless heater that heats food.

Unit materials are available as a 1-class unit kit (item #523701), 1-class refurbishment set (item #523704), 5-class unit kit (item #523701U5), and 5-class refurbishment set (item #523704U5). Carolina Certified Version*.

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*All enhancements to materials and instruction for this Carolina Certified Version of the unit are approved by OpenSciEd to preserve the integrity of the storyline and the instructional model.